On Monday, Southwest revealed its newest state-themed jet, Tennessee One. The aircraft, a Boeing 737-700 (N922WN), features a decorative rendition of the Tennessee flag. In Nashville, Southwest brought employees, customers, and community members for a flight to Memphis and a special “Live at 35” concert featuring country music stars Chris Young and Cassadee Pope. Celebrations in Nashville and Memphis included performances from a number of country groups, including A Thousand Horses and Ghost Town Blues Band. Southwest began serving Nashville…